<template>
  <div>
    <h2>App根组件 ----{{count}}</h2>
    <hr>
    <my-child v-model:number="count"></my-child>
  </div>
</template>

<script>
import MyChild from './Child.vue';
export default {
  name: 'MyApp',
  data() {
    return {
      count: 0
    };
  },
  components: {
    MyChild
  }
};
</script>

<style>
</style>